• Senior Systems Administrator

    Tyto Athene (Doral, FL)
    **Description** Tyto Athene is searching for a ** Senior Systems Administrator ( Linux )** to support US Southern Command on the SCITES II Contract in ... Doral, Florida. The Senior Linux Administrator leads the...drives automation and scripting initiatives. The Senior Administrator is responsible for architecting system solutions,… more
    Tyto Athene (07/28/25)
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  • Senior Systems Administrator

    GovCIO (Bismarck, ND)
    **Overview** GovCIO is hiring for a Senior Systems Administrator ( Linux and Windows) to provide on-going support for the administration of the core ... $105,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6239/ senior - systems - administrator --%28linux-windows%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID**… more
    GovCIO (07/09/25)
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  • Senior Linux Administrator

    Integration Innovation, Inc. (i3) (Huntsville, AL)
    …and implement a Missile Defense System with multiple layers of protection. The Senior Linux Administrator performs administration of cloud and on-site ... Overview i3 is searching for a Senior Linux Administrator to...improve the reliability and performance of the applications and systems . + Perform Linux system more
    Integration Innovation, Inc. (i3) (07/29/25)
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  • Senior Systems Administrator

    First Division Consulting (Dahlgren, VA)
    …is contingent on contract award** Position Overview: First Division Consulting is seeking a Senior Unix/ Linux Systems Administrator to support a ... Required Qualifications: + Six (6) years of professional experience in Unix/ Linux system administration for networks and software systems . + Experience in: +… more
    First Division Consulting (06/19/25)
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  • Senior Linux System

    BAE Systems (San Diego, CA)
    …recognition awards. Other incentives may be available based on position level and/or job specifics. ** Senior Linux System Administrator ( GXP Program )** ... is seeking a Senior Closed Area Linux Systems Administrator to provide...to 40lbs) and work within controlled environments. **_In this Senior Linux System Adminisrator position… more
    BAE Systems (07/31/25)
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  • Senior Linux System

    General Dynamics Information Technology (Livermore, CA)
    …$10K Sign-on bonus A Senior Linux System Administrator Maintains an organization's computer systems ' workflows and is responsible for the ... hardware upgrades. + Core Systems : Domain Controllers, Linux servers, DNS, VMware, HPE Blade System , Storage switches + Supplemental Systems / Software:… more
    General Dynamics Information Technology (05/10/25)
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  • Senior Linux System

    RTX Corporation (Tucson, AZ)
    …US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret ** Senior Linux System Administrator Tucson, AZ. Must ... the integrity of our systems and support IT infrastructures around the world. ** Senior System Administrator ** , internally known as Senior Analyst,… more
    RTX Corporation (07/18/25)
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  • Senior Linux Systems

    Leidos (Aurora, CO)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) ... difference in National** **Security!** Join our team as a ** Linux Systems Administrator ** , where...Ten or more (10) years of experience as a System Administrator (SA) supporting programs and contracts… more
    Leidos (07/16/25)
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  • Senior Linux System

    Leidos (Orlando, FL)
    **Description** Are you an experienced ** Senior Linux System Administrator ** looking for your next challenge? Your search ends here! We have an exciting ... Linux +, (RHCE) Red Hat Certified Engineer, (RHCSA) Red Hat Certified System Administrator ). **Original Posting:** July 3, 2025 For US Positions: While… more
    Leidos (07/04/25)
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  • Senior Linux System

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Linux System Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD (Onsite) Position Overview: The Senior ... System Administrator is responsible for leading system administration activities. This position oversees the installation, configuration, maintenance, and… more
    Black Bear Technology Solutions, LLC (05/24/25)
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  • Senior Linux System

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you ... will support the implementation, troubleshooting, and maintenance of IT systems , as well as manage IT system ...planning. + Configure and manage Linux operating systems ; install and maintain OS software; implement system more
    ManTech (07/26/25)
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  • Senior Linux Systems

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) ... qualified candidate for a small, diverseteam that provides end-to-end software, systems , and network engineering services to support Integrated Discovery Operations… more
    Leidos (05/14/25)
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  • Senior Linux /Unix Systems

    SMX (Dahlgren, VA)
    Senior Linux /Unix Systems Administrator (4411)at SMX(View all jobs) (https://www.smxtech.com/careers/) Dahlgren, VA SMX is looking for a highly motivated ... Senior Linux /Unix Administrator to join...Warfare Center Dahlgren Division (NSWCDD) in Dahlgren, VA. The Senior Systems Administrator will work… more
    SMX (07/25/25)
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  • Senior System Administrator

    TISTA Science and Technology (Austin, TX)
    Overview TISTA is looking for a Senior Systems Administrator to manage teams, prioritize work, and handle critical problems. You'll provide patching support, ... work with ServiceNow, and oversee provisioning, configuration management, and system monitoring on Linux systems ...and performs proper incident handoff to the next shifts Senior Linux SA team lead, and facilitates… more
    TISTA Science and Technology (05/29/25)
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  • Senior Linux Administrator

    General Dynamics Information Technology (Falls Church, VA)
    …Yes **Job Description:** + Provide system administration support for Linux operating systems including installing software, applying patches, managing file ... TIA Security + Certified - CompTIA, Red Hat Certified System Administrator (RHCSA) in Red Hat OpenStack...(Bash, Ruby, Python, Perl, etc.) + General understanding of Linux internals ( system calls, file systems more
    General Dynamics Information Technology (07/06/25)
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  • Senior Systems Administrator

    Mount Sinai Health System (New York, NY)
    …clinical data warehouse team and a research data services team. The **_Senior Systems Administrator /Engineer,_** as a member of the Scientific Computing and Data ... is the principal technology expert for Windows and Linux systems , and help support high-performance computing...System is one of the largest academic medical systems in the New York metro area, with more… more
    Mount Sinai Health System (06/24/25)
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  • Mid Level Linux Administrator

    Amentum (Hanover, MD)
    …and support network equipment as well as storage solutions. Candidate will work alongside a senior Linux Administrator as a mentor to provide support and ... look no further. Amentum is seeking a **Mid Level Linux Administrator ** to join our team of...process. + Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots,… more
    Amentum (05/23/25)
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  • Sr. Principal Linux System

    RTX Corporation (Aurora, CO)
    …a Raytheon program in a classified environment as a Senior Principal Linux System Administrator . + Responsibilities include building, maintaining, and ... security clearance​ **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux System Administrator , Aurora, CO,...SSCP, CySA+, CND. + Experience administering Red Hat Enterprise Linux (RHEL) based systems + Experience using… more
    RTX Corporation (07/19/25)
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  • Linux Cyber Range Operations…

    Lockheed Martin (North Charleston, SC)
    …another face in the crowd\. While we think big, we operate small\. As a Senior Systems Administrator with a Linux focus, you'll play a key role on the ... assets\. **The Work** Cyber Support Operations is seeking a Senior Systems Administrator with a... engineering principles and concepts\. * Strong understanding of Linux operating systems , applications, networks, with moderate… more
    Lockheed Martin (07/12/25)
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  • Linux System Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Columbia, MD)
    Linux System Administrator , Senior The...or IT field and 5+ years of experience with systems or network administration, or 10+ years of experience ... environment that supports critical cybersecurity mission customers. As a Linux system administrator on our...with systems or network administration in lieu of degree +… more
    BOOZ, ALLEN & HAMILTON, INC. (07/25/25)
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